The answer is Gly-Ser-Arg
In the stomach, food undergoes chemical and mechanical digestion. Peristaltic contractions (mechanical digestion) churn the bolus, which mixes with strong digestive juices that the stomach lining cells secrete (chemical digestion). As food travels from your mouth into your digestive system, it's broken down by digestive enzymes that turn it into smaller nutrients that your body can easily absorb. This breakdown is known as chemical digestion.
Explanation:
Endogenic forces work towards the middle of the earth...creating pressure causing cracks, pits..
There are two events,
A: the selection belongs to the specific species, or
A' : the selection does not belong to the specific species.
asexual is from one singular parent . offspring comes from one singular cell . that should help you work through that !